The Countess Philippa died in spring 1386, and it was probably this combined with the death of their eldest son that pushed her husband to undertake a series of
pilgrimages. She was buried at
Stone Priory, Staffordshire. The Earl died in October of the same year in
Rhodes, having not yet reached his destination of
Jerusalem.
Richard Glanville-Brown, correspondence, Richard Glanville-Brown (RR 2, Milton, Ontario, Canada), 17 August 2005.
G.E. Cokayne; with Vicary Gibbs, H.A. Doubleday, Geoffrey H. White, Duncan Warrand and Lord Howard de Walden, editors, The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant. new ed., 13 volumes in 14 (1910–1959; reprint in 6 volumes, Gloucester, U.K.: Alan Sutton Publishing, 2000), volume XII/2, page 547.
Charles Mosley, editor, Burke's Peerage and Baronetage. 106th edition, 2 vols., Crans, Switzerland: Burke's Peerage (Genealogical Books) Ltd, 1999